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Recording performance of a giant magnetoresistive head on a perpendicular multilayer medium

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6 Author(s)
Kim, Young K. ; Quantum Corp., Louisville, CO, USA ; Harig, J.C. ; Noyes, G.I. ; Ho, Kuoksan
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The magnetic recording characteristics of a giant magnetoresistive spin-valve head in combination with a perpendicular disk medium have been measured. The disk medium contains a 30-nm-thick Pt/CoCrTa multilayer displaying low noise and high remanence. A pulse width of 172 nm, a signal to noise ratio of 31 dB, and a rolloff D50 point of 120 kFCI were achieved. The parametric data and window margin testing show this recording system can support recording storage density of 3.5 Gbits/in2 using a simple peak detect channel at a data rate of 65 Mbits/s

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Magnetics, IEEE Transactions on  (Volume:33 ,  Issue: 5 )